We found 2 dictionaries that define the word pneumatic hammers:

General (2 matching dictionaries)

1. pneumatic hammers: Merriam-Webster
2. pneumatic hammers: Vocabulary.com

(Note: See pneumatic_hammer as well.)

Definitions from WordNet (pneumatic hammer) ▸ noun:  a hammer driven by compressed air ▸ Also see pneumatic_hammer ▸ Words similar to pneumatic hammers ▸ Usage examples for pneumatic hammers ▸ Idioms related to pneumatic hammers ▸ Wikipedia articles (New!) ▸ Words that often appear near pneumatic hammers ▸ Rhymes of pneumatic hammers ▸ Invented words related to pneumatic hammers